Help Identifying Growth on Live Rock
 

Hey guys! I’ve never posted here before so hopefully my picture uploads and I’m in the right thread!

We have a weird growth on our live rock? I haven’t been able to find anything online that looks similar so I really hope you guys can help! The growth appears to have mouths and they open and close. (I have a video of it moving.)

If you can see the picture, the yellow circles are the large mouth things and the arrow points to smaller bubbles that also have holes in them.

It’s growing right next to our toadstool corals on the rock. The corals have been there for around 6 months, but we only just noticed this growth. It’s also growing right next to the coral and further up the rock and it’s all connected like a root.

Any idea what this could be and if it’s harmful to our tank?

sea squirts maybe..

+1

yup. benign

Thanks for the replies, guys! We actually threw some turbo snails in the tank to help take care of a diatom problem and it looks like the snails, unfortunately, ate the tunicates!